Governor for carbureter-throttles.



Patentd' Jan. 5, 1915.

P. J. L 'H. M. SGHULTZ. GOVERNOR FOR GARBURBTBR THEOTTL'ES.

APPLICATION FILED MAY13.1914.

sra naar 'canton mann a. scnnn'rfz ann Huisman ra scrittura, gr wonenCOLLINS., New ro' A Specification of Letters Patent.

Patented Jan. 5,' 1915..

.application nIed May 13, 1914. Serial No, 838,324.

To all whom t may concern Be it known that we', FRED d. Scrrm'rrz andHERMAN M. SGHULTZ, citizens of the United States, residing at NorthCollins, in the county of Erie, State of New York, have invented certainnew and useful llmprovements in Governors for Carbureterrlhrottles; andwe do hereby declare the following tobe a full, clear, and exactdescription of the invention, such as will enable others skilled in theartl to whichit appertains to make and use the same.

'll his invention relates to governors for carbureter throttles.

rlhe object of the invention resides in the provision of a device of thetype named which as the speed of the engine increases will move thethrottle toward closed position and toward open position as the speed ofthe [engine decreases; in other words the device is designed toautomatically reduce the supply of explosivermixture as the speed of theengine increases and automatically increase the supply of said mixtureas the speed of the engine decreases.

A further object of the invention resides in the provision of a deviceof the character named which will be simple in construction,

ethcient in' use and which may be readily as-l sociated with anexplosive engine of ordinary construction.

lVith the above and other objects in view the invention consists in thedetails of construction and inthe arrangement and combination of partsto be hereinafter 'more fully described and particularly pointed out inthe appended claim.

In describing the invention in detail reference will be had to theaccompanying drawings wherein like characters of reference .denotecorresponding parts in the several views, and in which- Figure 1 is aview in elevation of a fragment of an explosive engine showing theinvention applied; Fig. 2, a plan view of what is shown in Fig. 1;-Fig.3, a view in elevation of the device detached and on an enlarged scalethe casing of the device being removed; Fig. 4, a plan view of what isshown in Fig. 3; Fig. 5, a longitudinal sec# tion of what is shown inFig. 3 with the casing in place; and Fig. 6, an end view of the device.

Referring to the drawings 10 indicates an explosive engine, 11 the camshaft there* of and 12 the carbureter associated with the engine;Thiscarbureter 12 includes the usual throttle valve having a stem 13provided with an-operating arm 1li.

The improved governing device is shown as comprising a base 15 one endof which terminates in an upwardly directed portion l5 having a verticalpassage 16 therein opening through the upper edge of the portion 15.rThe lower end of the passage 16 communicates with a slot 17 formed inthe portion 15 and having slidably mounted therein a bearing 18 for apurpose that will presently appear. Rotatably' mounted in the base 15 isa shaft19 which hasxed on the upper end thereof above the base 15 afriction wheel 20. VFixed on the lower end of the shaft 19 is a beveledgear 21 which meshes with a beveled gear 22 ixedupon the cam shaft 11.Rising from the base 15 is a bearing 23 which has journaled therein ashaft 24. The end of the shaft 24 adjacent the friction wheel 20 isconnectedto one end of a tubular shaft 25 by a universal Joint 26, theother end of said tubular shaft 25 being journaled in the bearing 18.The shaft 25 is provided with oppositely disvposed longitudinal slots 27and slidably mounted on said shaft is a sleeve 28 upon the periphery ofwhich is fixed a -friction wheel 29 adapted to coperate with thefrictionwheel 2O asv will be obvious.

Slidably mounted in the bore of the shaft 25 is a shaft 30 the inner endof which carries a transverse pin 31 engaged through the slots 27 andinto the sleeve 28 whereby lon-i gitudinal movement of the shaft 8O willeffect movement of the sleeve 28 and wheel 29 to adjust ythe lattertoward and away from the center of the wheel 20 and whereby the rotationof the shaft 24 and 25 may be varied while the rotation of the shaft 11remains constant.

tially a horizontal plane is a forked bracket 36 between the arms ofwhich is pivotally mounted a lever 37, one end of which is Abase andprojecting outwardly in substanpivotally secured between the ears whilethe other end thereof/is'pivotally connected moving the rod 38longitudinally it will be obvious that the friction wheel- 29 can bemoved toward and away from the center of the friction wheel 20. Mountedupon the base 15 is a base bearing 39 and journaled in this bearing isthe lower end of a tubular shaft 40. '1 he upper end of the shaft 40 isjournaled in the inclosingkcasing 41 of 'the device. The upper end ofthe shaft is provided with oppositely disposed longitudinal Islots 42and pivoted in the upper end of each slot 42 is an arm 43 which carriesat its free end a Aweighted portion 44. Slidably mounted in the bore ofthe shaft 40 isa rod the upper end of which is connected to the. arms 43by means of links 46. The lower end of the vrod 45 has swivele'd therevon a bracket 47 for a purpose that will presently appear. The basebearing'39 is provided at its lower endwith an opening 48 through whichextends a curved lever 49, said lever being pivoted to the base bearingbetween the walls of said opening. The

inner end of the lever 49 is pivotally connected to the bracket 47 whilethe outer end offsaid lever is connected to the' operating arm 13 of thethrottle'valve lof the carbureter by means of a link 50.

Vhen'the engine is started the throttle valve of thel carbureter isfully open. As the engine picks up speed the free ends of the arms 43will move out under the influence of centrifugal force and lift the rod45. This movement of the rod 45 will in turn pivot the lever 49 whichlatter through the medium of the link 50 will rotate the, throttle valveof the carbureter toward closed position. In this manner the device willserve to automatically control the supply of explosive mixture to theengine.

It will be noted that theshaft 40 has fixed thereon a beveled gear 51which meshes with a beveled gear 52 fixed on the shaft 24 and wherebythe rotation of the shaft 24 will effect a rotation of the shaft 4Q.

What is claimed is In a device of the class described, the combinationof a base, a shaft rotatably mountedin the base at right angles to thelatter and adapted to be operatively connected to a rotating portion ofan explosive engine, a friction wheel fixed on said shaft, a secondshaft rotatably mounted on the base at right angles to the first namedshaft, a friction wheel noiirotatably and slidably mounted on the secondnamed shaft and engaging the friction Wheel on the first named shaft,means for sliding the friction wheel on the second named shaft towardand away from the center of the friction Wheel on the first named shaftto vary the speed of rotation of the second named shaft, a verticaltubular shaft rotatably mounted on the base, connections betweenthe,vertical tubular shaft and the second named shaft for effecting therotation of the former, a rod slidably mounted in the tubular shaft, alever pivoted on the base having one end-pivotally connected to thelower end of said rod and its other end adapted for connection' to thethrottle valve of a carbureter whereby the swinging of said lever willoperate the valve to opened and closed positions, and centrifugallyoperated meansv for lifting said rod as the speed of rotation of thetubular shaft increases to move -the lever in a direction to close thethrottle valve.

1n testimony whereof, we aflix our signatures, in the presence of twowitnesses.

FRED J. SCHULTZ. HERMAN M. SCHULTZ.

Witnesses:

Amos DASH, BENJAMIN H. PnRoY.

